Patents by Inventor David Frederick Lewin

David Frederick Lewin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7624867
    Abstract: A method and apparatus for collecting texturized strand are disclosed. The apparatus for collecting texturized strand includes a texturizer for expanding a continuous strand of glass fibers into a wool-like product, a container for collecting the texturized strand, and a device establishing a pressure differential between an interior region of the container and a region external of the container. The texturizer includes a nozzle to which a supply of compressed air and a continuous strand are fed. The compressed air advances the strand of glass fibers through the nozzle and expands the strand so that the filaments are spread apart, thereby giving the strand a wool-type appearance. The pressure differential creating device includes a vacuum apparatus for drawing air and a screen through which the air flows. A container is placed on the screen. In the preferred embodiment, the container is a corrugated box that has upper and lower closures or flaps.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: December 1, 2009
    Assignee: OCV Intellectual Capital, LLC
    Inventors: David Frederick Lewin, Michael Blaise Fazio
  • Publication number: 20020096446
    Abstract: A method and apparatus for collecting texturized strand are disclosed. The apparatus for collecting texturized strand includes a texturizer for expanding a continuous strand of glass fibers into a wool-like product, a container for collecting the texturized strand, and a device establishing a pressure differential between an interior region of the container and a region external of the container. The texturizer includes a nozzle to which a supply of compressed air and a continuous strand are fed. The compressed air advances the strand of glass fibers through the nozzle and expands the strand so that the filaments are spread apart, thereby giving the strand a wool-type appearance. The pressure differential creating device includes a vacuum apparatus for drawing air and a screen through which the air flows. A container is placed on the screen. In the preferred embodiment, the container is a corrugated box that has upper and lower closures or flaps.
    Type: Application
    Filed: February 4, 2002
    Publication date: July 25, 2002
    Inventors: David Frederick Lewin, Michael Blaise Fazio
  • Patent number: 6370747
    Abstract: A method and apparatus for collecting texturized strand are disclosed. The apparatus for collecting texturized strand includes a texturizer for expanding a continuous strand of glass fibers into a wool-like product, a container for collecting the texturized strand, and a device establishing a pressure differential between an interior region of the container and a region external of the container. The texturizer includes a nozzle to which a supply of compressed air and a continuous strand are fed. The compressed air advances the strand of glass fibers through the nozzle and expands the strand so that the filaments are spread apart, thereby giving the strand a wool-type appearance. The pressure differential creating device includes a vacuum apparatus for drawing air and a screen through which the air flows. A container is placed on the screen. In the preferred embodiment, the container is a corrugated box that has upper and lower closures or flaps.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: April 16, 2002
    Assignee: Owens Corning Fiberglas Technology, Inc.
    Inventors: David Frederick Lewin, Michael Blaise Fazio